Brothers Aki and Shima are upset by the sudden appearance of a "fourth brother" in the Kaidou family, and Haru's excessively affectionate attitude towards Ren makes Aki explode with rage. Meanwhile, Haru happens to witness a car accident in the city. Since then, Haru begins leaving Ren alone in the apartment. On top of that, while Ren is home alone, one of Haru's customers from the host club forces her way into the apartment, and--?!
Whether you accept him or not, 
according to the register,
Was soll ich dazu
schon sagen?
Recházalo si quieres,
 pero según el registro,
Recházalo si quieres,
 pero según el registro,
Que tu le veuilles ou non, 
Ren est sur le livret de famille.
Libero di non accettarlo,
ma secondo lo stato di famiglia
Mesmo você dizendo isso,
não há nada que eu possa fazer...